Phase I (completed) used structured interviews and surveys in the development of a decision model for HT. In phase II, an interactive CD-ROM decision-aid was developed and a randomized controlled trial (RCT) of its effect on decision processes was conducted. Postmenopausal women, aged 45-74 were recruited from the primary care clinics of the four participating Veterans Affairs hospitals: Milwaukee, Madison, Chicago-Hines, and Chicago-Westside. The primary hypothesis was that women who use the CD-ROM decision-aid would demonstrate increased satisfaction with their decision regarding hormone replacement therapy use compared to women receiving the control intervention.